According to 46 CFR, Subchapter J...

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Question 1 of 205eccefa4bacbc34ba4d485af

According to 46 CFR, Subchapter J (Electrical Engineering), what is the required minimum capacity in terms of hours of operation required of the emergency power sources for cargo vessels of 500 GT or more certified for ocean, Great Lakes, coastwise, and international voyage service or for cargo vessels of 1600 GT operating on any waters?

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🔍 Key Concepts

• 46 CFR Subchapter J requirements for emergency power sources on cargo vessels • Different endurance requirements (in hours) for emergency lighting and power based on vessel type and service • Distinguish between passenger vessels and cargo vessels in 46 CFR when reading tables and paragraphs

💭 Think About

• Locate the specific section in 46 CFR Subchapter J that addresses emergency power endurance (duration) for cargo vessels in ocean/coastwise/international service. • Compare the hour requirements you see there with the values in the answer choices and pay attention to whether there is any conditional phrase like "or twice the time of run". • Think about why cargo vessels would typically have a different minimum endurance requirement than passenger vessels and which of the listed times best fits that role in emergencies.

✅ Before You Answer

• Confirm you are reading the section that explicitly mentions cargo vessels of 500 GT or more and 1600 GT vessels on any waters, not passenger vessels. • Verify whether the regulation specifies a fixed number of hours only, or a number of hours plus a conditional phrase (such as related to time of run). • Double‑check that the hour value you pick exactly matches the wording and structure (including any "whichever is less" language) in the CFR text.

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